Stump-extractor



UNITED STATES PATENT OFFICE.

JAGOB WILSON, OF ST. CHARLES, MIGHIGAN.

STU M P-EXTRACTO R.

i SPECIFIGATION forming' part of Letters Patent No. 261,890, datedAugust 1, 1882.` Application fima April 14, 1882,. (No mati.)

10 all whom it 'may concern Be it known that I, JACOB WILSON, a citizenof the United States, residing at St. Charles, in the county of -Saginawand State of Michigan, have invented certain new and useful Improvementsin Hoistin g Mechanism Especially Adapted to the Removal of Tree-Stumps;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in Itheart to which it appertains to make and use the same.

My invention consists of an improved niechanism for' pulling stumps. iReferring to the accompanyin g drawings, Figure l represents a view inperspective of my improved device; Fg. 2, a detached view, to behereinafter referred to;

A A' A2 is a tripod-frarne adapted to be set over the stump which it isdesired to pull. To the upper end of the leg A, and on the undersurface, is bolted a piece of iron, a, `provided at its lower.end withan eye, in which is sus pended the U-shaped link'a'. On this link aretwo movable rings, az, adapted to receive the upper ends of detachablelegs A' A2, one on each side of the leg A. The legs AI AZ are connectedby a horizontal bar, A3, which rests on the ground. The leg A is alsosupported by a horizontal bar, A4. The legs A' A2 are connected with theleg A by horizontal braces A5. The ground-bars A3 A4 are adapted to besecured to the ground by stakes. At the upper end of the leg A aresecured, on the under surface, four eyebolts, b c d e, one under theother.

F is a link suspended from a pin, which closes the ends of the U-shapedlink ct'. This link F is provided upon the inner surface of one sidewith a series of hook-shaped notches, f, which point upward. Oonnectedwith this link F is a supplemental link,f', for a purpose hereinafterdescribed. p

Within the tripod-frame is suspended, in a substantially horizontalposition, the bar G, connected at one end to the link F by means of aU-shaped link, g, which is pivoted at g' to said bar G. The other end ofthe bar is suspended from the top of the leg` A by means of a rope orchain, H, which, being secured to the eyebolt c, connects a seriesot'pnlleys, I, on the end of the bar G, with the tackle-blocks B and D,which latter are suspended from the eye- Vup by hand or horse power.

boltsb and d, respectively. Thence the rope or chain passes through theblock J, secured to the ground-piece A3, to any preferred windingmechanism. The chain may, however, be taken The bar G is constructed soas to have a Vertical central slot, as shown in Fig.2. This can beaccomplished by constructing the bar oftwo pieces connected at theirends so as to leave a space between them, as shown in the drawings, orby making a slot in a solid bar. Through this slot passes the Verticalbar K, one edge of which is provided with the hook-shaped anddownwardlyturned notches k, by means of which it can bc supported upon apin, 92, which passes horizontall y through holes 93 in the bar G. Aseries of such holes g permit the adjustment of the bar K nearer to orfarther from the point g', accordingly as it is desired to increase thepower of the tackle B D H I J, or, on the other hand, to increase theVertical distance which the bar K traverses, and the quickness withwhich the stump is pulled. To the lower end of the bar K is attached thechain L, by means of which the stump is drawn.

A means for lowering and hoisting the bar K and chain L independently ofthe bar G is provided, consisting of the tackle-block E, which issuspended from the eyebolt e, the block E', which latter is secured tothe upper end of the bar K, and the rope E2, which passes through saidblocks. construction, as it is only intended, after lowering the bar Kenough to secure the chain L to the stump, to pull said chain taut. Assoon as this is done the pin g2 is passed through one of the series ofholes 03, and placed in one of the notches 7a on the bar K. The pullingof the stump is then effected by means of the heavy tackle B D H I J.After hoisting that end of the bar G to which this tackle is secured asfar as may be advantageously done the bar K is connected at that heightwith the link F by means of the supplemental link f', which is placed inthe hook-shapedinotches of said bar K and link F. The bar G is thenlowered, leaving the bar K suspended by supplemental link f'. The pin(12 is then placed in a lower notch on bar K, when the stump may bepulled a farther distance by applyin g the power, and so on until it isextracted. As the link g is This tackle is of light IOO verticallyadjustable in the notches the bar lK and the stnmp may be raised adistanoe equal to the length'of the series of notohes f plus that of theseries k, after having once connected the bar K with the stump.

What I clairn as my invention, and desire to secure by Letters Patent,is-

1. In a stump-puller, the combination, with the tripod-franne, of thevertically-adjustable bar G, provided With the pulleys I, link F,provided with hooked-shaped notohes f, connected to the frame and barGr, bar K, provided with hooked-shaped notches k,detaohab] y connectedto the bar G and to the tackle-block E by ohain or rope E2, and thehoisting rope or chain H, substantially as and for the purpose hereinshown and described.

2. In a stump-puller, the combination, with the tripod-frame, of thevertically-adjustable bar G, provided with the pulleys I, link F,provided with hooked-shaped notches f, connecting links a'g andsupplemental link', bar K, provided with hooked-shaped notches lc,tackleblocks E El, and chain or rope for conneoting the upper end ofsaid bar K with the frame, tackle-blocks B D, pulley J, and ahoistingrope H, the several parts arranged and operating substantially'in the manner as and for the purpose herein shown and desoribed.

In testimony whereof I affix my signature in 30 presence of twowitnesses.

JAooB wiLsoN.

Witnesses:

J AMEs EDwARD WHALEY, WILLIAM OLARKE OUNNINGHAM.

